Finding the Fourth Proportional to 3,598.88, 5,401.20 and 1,868.00

Step by Step Solution

1. Step 1: Write the proportion equation
   3,598.88 : 5,401.20 = 1,868.00 : x
2. Step 2: Convert to fraction form
   3,598.88/5,401.20 = 1,868.00/x
3. Step 3: Cross multiply
   3,598.88x = 5,401.20 × 1,868.00
4. Step 4: Simplify right side
   3,598.88x = 10,089,462.11
5. Step 5: Solve for x
   x = 10,089,462.11/3,598.88
6. Step 6: Final answer
   x = 2,803.50